J Korean Ophthalmol Soc > Volume 57(8); 2016 > Article
Journal of the Korean Ophthalmological Society 2016;57(8):1216-1221.
DOI: https://doi.org/10.3341/jkos.2016.57.8.1216    Published online August 15, 2016.
Change in Subfoveal Choroidal Thickness after Patterned Panretinal Photocoagulation in Patients with Diabetic Retinopathy.
Hye Min Jeon, Sue Hey Chae, Soh Eun Ahn, Sang Won Kim, Hee Seong Yoon
Sungmo Eye Hospital, Busan, Korea. heesyoon@dreamwiz.com
당뇨망막병증 환자에서 패턴 범망막광응고술 후 중심와아래 맥락막두께의 변화
Correspondence:  Hee Seong Yoon,
Email: heesyoon@dreamwiz.com
Received: 14 April 2016   • Revised: 23 May 2016   • Accepted: 14 July 2016
To evaluate changes in subfoveal choroidal thickness (SFCT) after patterned panretinal photocoagulation (PRP) using pattern scan laser (PASCAL) in patients with diabetic retinopathy. METHODS: This study included 39 patients (50 eyes) treated with patterned PRP using PASCAL and who were followed for at least 3 months. Patients were classified into 2 groups according to severity: severe non-proliferative diabetic retinopathy and proliferative diabetic retinopathy. SFCT was measured by enhanced depth imaging of spectral-domain optical coherence tomography. The change in SFCT was analyzed at 1 and 3 months after PRP. RESULTS: SFCT was 270.42 ± 61.44 µm before PRP, 264.52 ± 60.78 µm at 1 month, and 255.74 ± 56.89 µm at 3 months after PRP. Significant change of SFCT was found at 3 months after PRP. Central macular thickness was 275.56 ± 50.61 µm before PRP and increased to 295.18 ± 52.80 µm and 293.10 ± 57.24 µm at 1 and 3 months post-treatment, respectively. There were no significant differences between groups in SFCT at baseline or in the amount of change in SFCT after PRP. CONCLUSIONS: SFCT significantly decreased after patterned PRP using PASCAL.
Key Words: Diabetic retinopathy;Panretinal photocoagulation;Pattern scan laser;Spectral-domain optical coherence tomography (SD-OCT);Subfoveal choroidal thickness

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